CN103401941B - Gis one kind of scene information processing method, system, and server nodes machine - Google Patents

Gis one kind of scene information processing method, system, and server nodes machine Download PDF

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CN103401941B
CN103401941B CN201310347330.3A CN201310347330A CN103401941B CN 103401941 B CN103401941 B CN 103401941B CN 201310347330 A CN201310347330 A CN 201310347330A CN 103401941 B CN103401941 B CN 103401941B
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information
server
display
gis
rendering
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CN201310347330.3A
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CN103401941A (en
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林良辉
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广东威创视讯科技股份有限公司
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Abstract

本发明实施例公开了一种GIS场景信息处理方法、系统、节点机和服务端,用于有效同步显示GIS场景信息。 Embodiments of the present invention discloses a GIS scene information processing method, system, and server node computer, for displaying GIS valid synchronization scene information. 本发明实施例方法包括:与服务端建立通信;获取服务端发送的GIS场景信息;对GIS场景信息进行渲染,得到渲染信息;发送显示请求至服务端;接收服务端发送的显示指令;对渲染信息进行显示。 Example embodiments of the present invention comprises: establishing server communication; obtaining GIS scene information sent by the server; of GIS scene information for rendering, to obtain rendering information; transmitting display request to the server; display instruction receiver sent by the server; to render information display. 本发明的方法是在所有节点机都渲染完成之后,等待显示指令,同步显示,从而解决了性能差异导致各个节点机对每一帧渲染的时间不一样的问题,从而达到同步显示的目的。 The method of the present invention is that all the nodes after completion of rendering machines, Wait command, synchronous display, so as to solve the performance difference results in each node for each machine frame rendering time is not the same problem, so as to achieve synchronized display.

Description

一种GIS场景信息处理方法、系统、节点机和服务端 In GIS scene information processing method, system, and server nodes machine

技术领域 FIELD

[0001]本发明涉及数据处理技术领域,尤其涉及一种GIS场景信息处理方法、系统、节点机和服务端。 [0001] Technical Field The present invention relates to data processing, and particularly to a GIS scene information processing method, system, and server nodes machine.

背景技术 Background technique

[0002] 地理信息系统(GIS,Geographic Informat1n System)是用于采集、存储、管理、处理、检索、分析和表达地理信息数据的计算机系统,是分析和处理海量地理数据的通用技术。 [0002] The geographic information system (GIS, Geographic Informat1n System) is for collecting, storing, managing, processing, retrieval, analysis and presentation of the computer system of GIS data is geographical data analysis and processing massive common technology.

[0003]随着该技术的发展,对场景的处理方法从单一场景渲染显示到多个子场景渲染再整体显示,S卩服务器对应多个节点机,多个节点机渲染多个子场景,再显示到拼墙上形成一个完整的场景。 [0003] With the development of the technology, a processing method for rendering a scene from a single scene into a plurality of sub-display and then rendering the whole scene display, S Jie server nodes corresponding to a plurality of machines, the plurality of nodes a plurality of sub-scene rendering machine, and then to display fight wall to form a complete scene.

[0004] 一般的,服务端与多台节点机的通讯方法为广播通讯,既当需要显示一个三维场景时,由服务端同时广播所有的数据,各个节点机再一一获取并根据服务端发送的同步指令,计算并同步显示一个三维场景。 Communication Method [0004] Generally, the server machine and a plurality of broadcast communication node, when both needs to display a three-dimensional scene, by the broadcast server at the same time all the data, each node again one machine in accordance with the server and transmits acquired the synchronization instruction, and calculates a three-dimensional scene synchronized display. 目前的这种技术由于是服务端发送同步指令,再由客户端的节点机执行动作,只是保证了指令上的同步,各个节点机仍需要独自计算,由于各节点机的硬件配置不一样,性能差异导致各个节点机对每一帧渲染的时间不一样,从而产生了拼墙系统显示不同步。 At present this technology the server transmits the synchronization instruction, then performing an action by the client node computer, only to ensure the synchronization, each node unit still needs to be calculated solely on the command, since the hardware configuration of each node controller are not the same, the performance difference as is results in each node are not the same for each machine frame rendering time, resulting in a display wall system to fight sync.

发明内容 SUMMARY

[0005]本发明实施例提供了一种GIS场景信息处理方法、系统、节点机和服务端,用于有效同步显不GIS场景彳目息。 Example [0005] The present invention provides an information processing method GIS scenario, system, machine and server nodes for efficient synchronization is not significant scene left foot mesh GIS information.

[0006]本发明实施例提供的一种GIS场景信息处理方法,具体包括: [0006] An information processing method according to an embodiment GIS scenario of the present invention, comprises:

[0007]与服务端建立通信; [0007] establish communication with the server;

[0008]获取服务端发送的GIS场景信息; [0008] GIS acquiring scene information sent by the server;

[0009]对GIS场景信息进行渲染,得到渲染信息; [0009] GIS information for rendering the scene, to obtain rendering information;

[0010] 发送显示请求至服务端; [0010] transmits a display request to the server;

[0011 ]接收服务端发送的显示指令; [0011] receiving the display instruction sent by the service;

[0012]对渲染信息进行显示。 [0012] for rendering information to display.

[0013] 可选的, [0013] Alternatively,

[0014]与服务端建立通信步骤包括: [0014] The step of establishing communications with the server comprising:

[0015]组播自身位置信息,使服务端接收后建立连接列表; [0015] Multicast self-position information of the server after receiving a connection list;

[0016]接收服务端根据连接列表发送的服务端位置信息; [0016] the receiving side service end position information transmitted according to the connection list;

[0017]根据服务端位置信息,向服务端发送socket会话列表建立请求,使服务端建立socket会话列表。 [0017] The position information server transmits the service list to the socket end of the session establishment request, for establishing the socket end so that the service session list.

[0018] 可选的, [0018] Alternatively,

[0019] 获取服务端发送的GIS场景信息步骤之后,对渲染信息进行显示步骤之前还包括: Before [0019] After acquiring step GIS scene information sent by the server, for rendering the information displaying step further comprises:

[0020]接收服务端发送的根据GIS场景信息计算得到的显示信息; [0020] The display information according to the calculated scene GIS receiver sent by the server;

[0021] 根据显示信息调整显示参量。 [0021] The display information adjustment parameter display.

[0022]可选的, [0022] Alternatively,

[0023] 对GIS场景信息进行渲染,得到渲染信息步骤之后,发送显示请求至服务端步骤之前还包括,将渲染信息储存至后缓冲区。 [0023] After rendering GIS scene information, rendering information obtain step, before transmitting the display request to the server further comprises the step of, after the rendering information is stored to the buffer.

[0024]可选的, [0024] Alternatively,

[0025]对渲染信息进行显示步骤之前还包括,将后缓冲区与前缓冲区换位。 [0025] Before rendering information further comprises the step of displaying the back buffer and the front buffer transposition.

[0026]本发明实施例还提供了一种节点机,具体包括: Example [0026] The present invention also provides a machine node, comprises:

[0027]建立单元,用于与服务端建立通信; [0027] establishing unit configured to establish communication with the server;

[0028]获取单元,用于获取服务端发送的GIS场景信息; [0028] acquiring unit, for acquiring GIS scene information sent by the server;

[0029]渲染单元,用于对GIS场景信息进行渲染,得到渲染信息; [0029] The rendering unit, scene information for rendering GIS obtain rendering information;

[0030] 第一发送单元,用于发送显示请求至服务端; [0030] a first transmitting unit for transmitting display request to the server;

[0031]第一接收单元,用于接收服务端发送的显示指令; [0031] a first receiving means for receiving the display instruction sent by the server;

[0032] 显示单元,用于对渲染信息进行显示。 [0032] The display unit displays information for rendering.

[0033] 可选的, [0033] Alternatively,

[0034]节点机还包括: [0034] Node machine further comprises:

[0035]储存单元,用于将渲染信息储存至后缓冲区; [0035] The storage unit for rendering the stored information to the buffer;

[0036]换位单元,用于将后缓冲区与前缓冲区换位。 [0036] conversion unit, the back buffer and the front buffer for transposition.

[0037]本发明实施例还提供了一种服务端,具体包括: [0037] Embodiments of the present invention further provides a server, comprises:

[0038]第二发送单元,用于向各节点机发送GIS场景信息; [0038] The second sending unit, for each node transmits scene information GIS;

[0039]第二接收单元,用于接收节点机发送的显示请求; [0039] The second receiving unit for receiving a display request sent by the node;

[0040]第三发送单元,用于当接收到所有节点机的显示请求后,发送显示指令到各节点机。 [0040] The third transmission unit for, when receiving a request to display all the node controller, each node transmits a display instruction to the machine.

[0041 ]可选的, [0041] Alternatively,

[0042] 服务端还包括: [0042] The server further comprises:

[0043]第三接收单元,用于接收各节点机组播的各节点机的位置信息; [0043] The third receiving unit for receiving position information of each node controller in each node broadcast unit;

[0044]第二建立单元,用于根据位置信息建立连接列表; [0044] The second establishing means for establishing a connection according to the location information of the list;

[0045]第四发送单元,用于根据连接列表发送服务端位置信息到各节点机; [0045] The fourth sending unit, configured to send location information to the server unit according to connected nodes list;

[0046]第四接收单元,用于接收节点机发送socket会话列表建立请求; [0046] The fourth receiving means for receiving a list of node sends a session establishment request socket;

[0047] 第三建立单元,用于建立socket会话列表。 [0047] Third establishing unit for establishing a session socket list.

[0048]本发明实施例还提供了一种GIS场景信息处理系统,具体包括: [0048] Embodiments of the present invention further provides a GIS scene information processing system comprises:

[0049]节点机和服务端; [0049] The node computer and the server;

[0050]节点机包括: [0050] Node machine comprising:

[0051 ]建立单元,用于与服务端建立通信; [0051] establishing unit configured to establish communication with the server;

[0052]获取单元,用于获取服务端发送的GIS场景信息; [0052] The acquisition means for acquiring a scene GIS information sent by the server;

[0053]渲染单元,用于对GIS场景信息进行渲染,得到渲染信息; [0053] The rendering unit, scene information for rendering GIS obtain rendering information;

[0054] 第一发送单元,用于发送显示请求至服务端; [0054] a first transmitting unit for transmitting display request to the server;

[0055]第一接收单元,用于接收服务端发送的显示指令; [0055] a first receiving means for receiving the display instruction sent by the server;

[0056] 显示单元,用于对渲染信息进行显示。 [0056] The display unit displays information for rendering.

[0057]服务端包括: [0057] The server comprises:

[0058]第二发送单元,用于向各节点机发送GIS场景信息; [0058] The second sending unit, for each node transmits scene information GIS;

[0059]第二接收节点机发送的显示请求; [0059] The second display request sent by the receiving node;

[0060]第三发送单元,用于当接收到所有节点机的显示请求后,发送显示指令到各节点机。 [0060] The third transmission unit for, when receiving a request to display all the node controller, each node transmits a display instruction to the machine.

[0061]从以上技术方案可以看出,本发明实施例具有以下优点:本发明实施例提供的一种GIS场景信息处理方法,具体包括:与服务端建立通信;获取服务端发送的GIS场景信息;对GIS场景信息进行渲染,得到渲染信息;发送显示请求至服务端;接收服务端发送的显示指令;对渲染信息进行显示。 [0061] As can be seen from the foregoing technical solutions, embodiments of the present invention has the following advantages: an information processing method GIS scenario according to the present embodiment of the invention, comprises: establishing communication with the server; GIS acquiring scene information sent by the server ; GIS scene for rendering information to obtain rendering information; transmitting display request to the server; receiving the display instruction sent by the server; rendering information to be displayed. 由于各节点机接收GIS场景信息后,先对其进行渲染,然后由各节点机向服务端发送显示请求,当接收到服务端发送的显示指令后,才对渲染信息进行显示。 Since each node receives information GIS scene, rendering them first, then sends the display request to the server node by the machine, after receiving the display instruction sent by the server, fishes rendering information for display. 而现有技术中节点机接收GIS场景信息后,需要等待接收服务端的同步指令后才进行渲染,再进行显示。 After the node receives the prior art GIS scene information, the synchronization instruction to wait before receiving the server for rendering, then the display. 由于不同节点机性能差异导致各个节点机对每一帧渲染的时间不一样,从而产生了显示不同步。 Since the machine performance differences lead to different nodes each node is not the same for each machine frame rendering time, resulting in the display is not synchronized. 本发明的方法是在所有节点机都渲染完成之后,等待显示指令,同步显示,从而解决了性能差异导致各个节点机对每一帧渲染的时间不一样的问题,从而达到同步显示的目的。 The method of the present invention is that all the nodes after completion of rendering machines, Wait command, synchronous display, so as to solve the performance difference results in each node for each machine frame rendering time is not the same problem, so as to achieve synchronized display.

附图说明 BRIEF DESCRIPTION

[0062]图1为本发明实施例中一种GIS场景信息处理方法一个实施例流程图; [0062] FIG. 1 of one embodiment of a flowchart illustrating the scene GIS information processing method of the present embodiment of the invention;

[0063]图2为图1中节点机与服务端建立通信方法实施例流程图; [0063] FIG 2 is a node establishing communication with the server machine method flowchart embodiment;

[0064]图3为本发明实施例中一种GIS场景信息处理方法另一个实施例流程图; [0064] FIG. 3 GIS scenario of one embodiment of a flowchart illustrating an information processing method according to another embodiment of the present invention;

[0065]图4为本发明实施例中一种节点机结构示意图; [0065] Figure 4 a schematic view of one embodiment of the present invention, the machine configuration node;

[0066]图5为本发明实施例中一种服务器结构示意图; [0066] FIG. 5 one kind of a schematic structure of the server embodiment of the present invention;

[0067]图6为本发明实施例中一种GIS场景信息处理系统结构示意图。 [0067] FIG. 6 is a schematic configuration example of an information processing system of one embodiment of the present invention GIS scenario.

具体实施方式 Detailed ways

[0068]本发明实施例提供了一种GIS场景信息处理方法、系统、节点机和服务端,用于有效同步显不GIS场景彳目息。 [0068] Example embodiments provide a GIS scene information processing method, system, and server nodes machine of the present invention, is not significant for valid synchronization scenario left foot mesh GIS information.

[0069]请参阅图1,本发明实施例提供的一种GIS场景信息处理方法的一个实施例,具体包括: [0069] Referring to FIG 1, one embodiment of the present invention, the embodiment of the information processing method embodiment provided in GIS scene, comprises:

[°07°] 101、与服务端建立通信; [° 07 °] 101, establish communication with the server;

[0071]在本实施例中,节点机与服务端建立通信,其目的是为了节点机和服务端能够进行通信,具体建立通信的方法将在后续实施例中进行详述,在此不做具体限定。 [0071] In the present embodiment, the node establish a communication with the server machine, which are designed to machine and server nodes can communicate, the specific method of establishing communication will be described in detail in subsequent embodiment, which is not specifically limited.

[0072] 102、获取服务端发送的GIS场景信息; [0072] 102, the scene acquired GIS information sent by the server;

[0073]在本实施例中,节点机获取服务端发送的GIS场景信息,该信息可以是三维的也可以是二维的。 [0073] In the present embodiment, the node acquires machine GIS scene information sent by the server, the information may be three dimensional or may be two-dimensional.

[0074] 103、对GIS场景信息进行渲染,得到渲染信息; [0074] 103, scene information for rendering GIS obtain rendering information;

[0075]在本实施例中,节点机对GIS场景信息进行渲染,得到渲染信息。 [0075] In the present embodiment, node machine GIS scene rendering information, rendering information obtained. 由于该渲染步骤属于现有技术,在此不做赘述。 Since the rendering step belongs to the prior art, and is not repeated herein.

[0076] 104、发送显示请求至服务端; [0076] 104, transmits a display request to the server;

[0077]在本实施例中,当得到渲染信息之后,节点机并不马上对其进行显示,而向服务端发送显示请求。 [0077] In the present embodiment, the rendering information obtained when the node is not immediately subjected to the display unit, and transmits the display request to the server.

[0078] 105、接收服务端发送的显示指令; [0078] 105, receiving the display instruction sent by the service;

[0079]在本实施例中,节点机接收服务端发送的显示指令。 [0079] In the present embodiment, a node receives the display instruction sent by the server. 需要说明的是,服务端将等待所有节点机都发送显示请求之后,才发送显示指令。 Incidentally, all the nodes will wait for the server machine sends a display request only after sending a display instruction.

[0080] 106、对渲染信息进行显示。 [0080] 106, the rendering of the displayed information.

[0081 ]在本实施例中,节点机对渲染信息进行显示。 [0081] In the present embodiment, the node information display rendering machine.

[0082]本实施例中,节点机首先与服务端建立通信;再获取服务端发送的GIS场景信息;接着对GIS场景信息进行渲染,得到渲染信息;接着发送显示请求至服务端;当接收服务端发送的显示指令后,才对渲染信息进行显示。 [0082] In this embodiment, node machine is first established with the server communication; reacquisition GIS scene information sent by the server; Next, GIS scene information for rendering, to obtain rendering information; then sends a display request to the server; when receiving a service after the end of transmission of a display instruction, fishes rendering information for display. 由于各节点机接收GIS场景信息后,先对其进行渲染,然后由各节点机向服务端发送显示请求,当接收到服务端发送的显示指令后,才对渲染信息进行显示。 Since each node receives information GIS scene, rendering them first, then sends the display request to the server node by the machine, after receiving the display instruction sent by the server, fishes rendering information for display. 而现有技术中节点机接收GIS场景信息后,需要等待接收服务端的同步指令后才进行渲染,再进行显示。 After the node receives the prior art GIS scene information, the synchronization instruction to wait before receiving the server for rendering, then the display. 由于不同节点机性能差异导致各个节点机对每一帧渲染的时间不一样,从而产生了显示不同步。 Since the machine performance differences lead to different nodes each node is not the same for each machine frame rendering time, resulting in the display is not synchronized. 本发明的方法是在所有节点机都渲染完成之后,等待显示指令,同步显示,从而解决了性能差异导致各个节点机对每一帧渲染的时间不一样的问题,从而达到同步显示的目的。 The method of the present invention is that all the nodes after completion of rendering machines, Wait command, synchronous display, so as to solve the performance difference results in each node for each machine frame rendering time is not the same problem, so as to achieve synchronized display.

[0083]下面对节点机与服务端之间建立通信的步骤进行描述,请参阅图2,节点机与服务端建立通信步骤可以包括: [0083] Next, the step of establishing a communication between a node and the server machine will be described, referring to FIG 2, node establishing communication with the server machine may include the step of:

[0084] 201、组播节点机位置信息,使服务端接收后建立连接列表; [0084] 201, position information of the multicast node that establish a connection to the server after receiving the list;

[0085]在本实施例中,节点机将自己的位置信息通过组播的方式发送至服务端,时服务端接收后建立连接列表。 [0085] In the present embodiment, node machine own location information is sent to the server by multicasting, when the connection is established after the server receives a list.

[0086]需要说明的是,由于节点机不知道服务端的位置,无法通过单播的方式发送自己的位置信息,因此通过组播的方式来实现,该位置信息可以包括IP端口、物理位置等位置信息。 [0086] Incidentally, since the node is unaware of the location server can not send its own position information through a unicast manner, so by multicast manner, the location information may comprise location IP port, physical location, etc. information.

[0087] 202、接收服务端根据连接列表发送的服务端位置信息; [0087] 202, the server receives a service terminal according to the location information transmitted connection list;

[0088]在本实施例中,节点机接收服务端根据连接列表发送的服务端位置信息。 [0088] In the present embodiment, the server receives the location information sent by the server node according to the connection list.

[0089]需要说明的是,由于服务端不知道各节点机的位置信息,所有需要根据节点机的位置信息,建立链接列表,再将服务端位置依次发送给每一个节点机。 [0089] It should be noted that, since the server does not know the location of each node machine, all the necessary information node based on the location of the machine, creating a linked list, and then in turn be sent to the server location of each node machine. 节点机接收服务端的位置信息。 End position information service node receives.

[0090] 203、根据服务端位置信息,向服务端发送socket会话列表建立请求,使服务端建立socket会话列表。 [0090] 203, in accordance with the service end position setup request information sent to the server socket list of sessions, so that the server socket to establish the session list.

[0091]在本实施例中,节点机根据服务端位置信息,向服务端发送socket会话列表建立请求,使服务端建立socket会话列表。 [0091] In the present embodiment, node machine setup request according to the location information server, sending a list of the session to the server socket, so that the server socket to establish the session list.

[0092]本实施例主要描述了节点机与服务端建立socket会话列表的过程。 [0092] This embodiment mainly describes the server machine and the processing node to establish a session socket list. 由于现有技术中,服务端与节点机通过广播的方式建立通信,由于广播字节太多,容易产生网络风暴。 Since the prior art, the server machine and the node establish communications by broadcasting, since too many bytes broadcast, network storm prone. 而建立socket会话列表则有效避免了网络风暴的产生。 Establish socket session list is effectively avoiding the generation of network storm.

[0093]上面对本实施例提供的一种GIS场景信息处理方法的第一实施例进行了描述,下面请参阅图3,本发明实施例中一种GIS场景信息处理方法的另一个施例具体包括: The face of [0093] a first embodiment of a method for GIS information processing scenario according to the present embodiment is described below Referring to FIG. 3, another embodiment of one embodiment of a scene GIS information processing method of the present invention comprises :

[0094] 301、与服务端建立通信; [0094] 301, establish communication with the server;

[0095]在本实施例中,客户端与服务端建立通信的步骤可以是第二实施例中的步骤201到203。 [0095] In the present embodiment, the step of the client and server to establish communication may be a step in the second embodiment of the 201-203.

[0096] 302、获取服务端发送的GIS场景信息; [0096] 302, the scene acquired GIS information sent by the server;

[0097] 303、接收服务端发送的根据GIS场景信息计算得到的显示信息; [0097] 303, receiving service information sent by the display information calculation GIS scene obtained;

[0098] 304、根据显示信息调整显示参量; [0098] 304, the display information according to adjust the display parameters;

[0099]在本实施例中,客户端接收服务端发送的根据GIS场景信息计算得到的显示信息,其中显示信息可以包括:服务端根据GIS场景区域计算得到的显示区域,及根据GIS场景分辨率计算得到的显示分辨率等。 [0099] In the present embodiment, the client receives the server based on the display information transmitted GIS information calculated scene, wherein the display information may include: The server GIS scene display area obtained is calculated, and the scene according to the resolution GIS display resolution calculating the like obtained. 需要说明的是,该显示信息可以是三维相机投影阵参数或变换矩阵参数也可以是二维GIS显示区域信息。 Incidentally, the display information may be a three dimensional camera projection transformation matrix array parameter or parameters can also be a two-dimensional display area GIS information.

[0100]接着客户端可以根据显示分辨率对相机参数进行调节,或者根据显示区域来确定拼墙的规模。 [0100] The client can then display resolution of camera adjustment parameters, or to determine the size of the display area of ​​the wall to fight.

[0101]需要说明的是,步骤304可以在步骤303与步骤310之间任意位置,不影响技术效果的实现,具体位置不做限定。 [0101] Incidentally, the step 304 may be anywhere between step 303 and step 310, does not affect the implementation of the technical effect, the specific location is not limited.

[0102] 305、对GIS场景信息进行渲染,得到渲染信息; [0102] 305, scene information for rendering GIS obtain rendering information;

[0103] 306、将渲染信息储存至后缓冲区; [0103] 306, the rendering information is stored to a buffer;

[0104]在本实施例中,节点机将渲染信息储存至后缓冲区,需要说明的是,后缓冲区用于存放显卡待显示数据,而与之对应的前缓冲区用于显示。 [0104] In the present embodiment, the node information storage unit to the rendering buffer should be noted that the back buffer for storing graphics data to be displayed, and the corresponding front buffer for display. 本领域技术人员可以认为步骤304是将渲染信息储存在带有储存功能的装置中。 Those skilled in the art that step 304 may be the rendering information stored in the storage means with a function.

[0105] 307、发送显示请求至服务端; [0105] 307, transmits a display request to the server;

[0106] 308、接收服务端发送的显示指令; [0106] 308, receiving a display instruction transmitted from the server;

[0107]在本实施例中,步骤307与步骤308与第一实施例中的步骤104与步骤105—致,在此不做赘述。 [0107] In the present embodiment, step 307 and step 308 and step 104 to step 105- first embodiment of the actuator, which is not repeated herein.

[0108] 309、将后缓冲区与前缓冲区换位; [0108] 309, the back buffer and the front buffer transposition;

[0109]在本实施例中,节点机将后缓冲区和前缓冲区换位,原后缓冲区变成当前前缓冲区,而原前缓冲区变为当前后缓冲区,当前前缓冲区用于显示,而当前后缓冲区用来接收下一帧的渲染信息。 [0109] In the present embodiment, node machine back buffer and front buffer transposition, before the original buffer becomes the current buffer, and the original after the buffer becomes the current buffer before, with the current front buffer on the display, while after the current buffer is used to receive the next frame rendering information.

[0110] 310、对渲染信息进行显示。 [0110] 310, the rendering of the displayed information.

[0111]本实施例中,节点机首先与服务端建立通信;再获取服务端发送的GIS场景信息;接着对GIS场景信息进行渲染,得到渲染信息;得到渲染信息之后,将该渲染信息储存在后缓冲区中,接着发送显示请求至服务端;当接收服务端发送的显示指令后,将前缓冲区和后缓冲区换位,最后对渲染信息进行显示。 [0111] In this embodiment, node machine first establish communications with the server; reacquisition GIS scene information sent by the server; then GIS information to render a scene, to obtain rendering information; obtained after the rendering information, the rendering information is stored in the after the buffer, then sends a display request to the server; after receiving the display instruction sent by the server, the back buffer and front buffer transposition, rendering information displayed finally. 本实施例除了具备前两个实施例中的有益效果,在此之外,由于本实施例将渲染信息储存在后缓冲区,当接收显示指令后,将后缓冲区和前缓冲区换位,原后缓冲区变成当前前缓冲区,而原前缓冲区变为当前后缓冲区,当前前缓冲区进行显示,而当前后缓冲区用来接收下一帧的渲染信息。 In addition to the present embodiment, advantageous effects of the first two embodiments, in addition to this, since the present embodiment, the rendering information is stored in the buffer, after receiving the display instruction, the back buffer and front buffer transposition, after the original buffer becomes the current front buffer, and the original back buffer becomes the current buffer before the current front buffer for display, while after the current buffer is used to receive the next frame rendering information. 这个改变能够节省缓冲区到显示区的传递时间,使信息的处理速度更快。 This change can be saved to the transmission buffer area of ​​the display time, information processing speed faster.

[0112]前面对本发明实施例提供的一种GIS场景信息处理方法实施例进行了描述,下面请参阅图4,本发明实施例还提供,的一种节点机,具体包括: A node for machine [0112] the foregoing embodiments have been described in GIS scenario information processing method provided by embodiments of the present invention, see FIG. 4 below, embodiments of the present invention further provides, and comprises:

[0113]建立单元401,用于与服务端建立通信; [0113] establishing unit 401 configured to establish communication with the server;

[0114]获取单元402,用于获取服务端发送的GIS场景信息; [0114] acquisition unit 402 for acquiring a scene GIS information sent by the server;

[0115]渲染单元403,用于对GIS场景信息进行渲染,得到渲染信息; [0115] The rendering unit 403 for rendering GIS scene information, rendering information obtained;

[0116] 第一发送单元404,用于发送显示请求至服务端; [0116] The first sending unit 404, configured to send a request to the display server;

[0117]第一接收单元405,用于接收服务端发送的显示指令; [0117] The first receiving unit 405, configured to receive a display instruction transmitted from the server;

[0118] 显示单元406,用于对渲染信息进行显示。 [0118] the display unit 406, configured to render the display information.

[0119]节点机进一步包括: [0119] Node machine further comprises:

[0120]储存单元407,用于将渲染信息储存至后缓冲区; [0120] The storage unit 407 for rendering the stored information to the buffer;

[0121]换位单元408,用于将后缓冲区与前缓冲区换位。 [0121] conversion unit 408, the back buffer and the front buffer for transposition.

[0122]下面以一个具体应用中的例子对本实施例中的一种节点机内部单元之间的通信方式进行描述: [0122] In a particular application the following examples will be described of the means of communication between the present embodiment, a node machine internal units:

[0123]首先,建立单元401与服务端建立通信,其目的是为了节点机和服务端能够进行通信,具体建立通信的方法将在后续实施例中进行详述,在此不做具体限定。 [0123] First, establishing unit 401 establish communications with the server, which are designed to machine and server nodes can communicate, the specific method of establishing communication will be described in detail in the subsequent embodiments, and is not particularly limited.

[0124]接着,获取单元402获取服务端发送的GIS场景信息,该信息可以是三维的也可以是二维的。 [0124] Next, GIS acquisition unit 402 acquires scenario information sent by the server, the information may be three dimensional or may be two-dimensional.

[0125]然后,渲染单元403对GIS场景信息进行渲染,得到渲染信息。 [0125] Then, the rendering unit 403 to render information in GIS scene to obtain rendering information.

[0126]再由储存单元407将渲染信息储存在后缓冲区,需要说明的是,后缓冲区用于存放显卡待显示数据,而与之对应的前缓冲区用于显示。 [0126] The renderer 407 then the information is stored in the storage unit after the buffer should be noted that the back buffer for storing graphics data to be displayed, and the corresponding front buffer for display.

[0Ί 27 ]接着,第一发送单元404发送显示请求至服务端,第一接收单元405接收服务端发送的显示指令,然后换为单元408将后缓冲区和前缓冲区换位,原后缓冲区变成当前前缓冲区,而原前缓冲区变为当前后缓冲区,当前前缓冲区用于显示,而当前后缓冲区用来接收下一帧的渲染信息。 [0Ί 27] Next, a first transmission unit 404 transmits a display request to the server, the first display instruction receiving unit 405 receives the service sent by the server, and then changed to the buffer unit 408 and the front buffer after transposition, the original buffer region becomes the current front buffer, and the original after the buffer becomes the current buffer before the current front buffer for display, while after the current buffer is used to receive the next frame rendering information.

[0128] 最后显示单元406对渲染信息进行显示。 [0128] Finally, the display unit 406 pairs of rendering information to be displayed.

[0129]本实施例中,首先,建立单元401与服务端建立通信,接着,获取单元402获取服务端发送的GIS场景信息,然后,渲染单元403对GIS场景信息进行渲染,得到渲染信息。 [0129] In this embodiment, firstly, establishing unit 401 establish communications with the server, then GIS acquisition unit 402 acquires scenario information sent by the server, and then, the scene information 403 GIS rendering unit performs rendering to obtain rendering information.

[0130]再由储存单元407将渲染信息储存在后缓冲区,接着,第一发送单元404发送显示请求至服务端,第一接收单元405接收服务端发送的显示指令,然后换为单元408将后缓冲区和前缓冲区换位,原后缓冲区变成当前前缓冲区,而原前缓冲区变为当前后缓冲区,当前前缓冲区用于显示,而当前后缓冲区用来接收下一帧的渲染信息。 [0130] from the storage unit 407 and then display the information stored in the rendering buffer, then the first transmission unit 404 transmits a display request to the server, the server 405 receives a first receiving unit to transmit a command, then changed to 408 units back buffer and front buffer transposition, before the original buffer becomes the current buffer, and the original after the buffer becomes the current buffer before the current front buffer for display, and the current back buffer for receiving the a rendering of information.

[0131] 最后显示单元406对渲染信息进行显示。 [0131] Finally, the display unit 406 pairs of rendering information to be displayed.

[0132]由于获取单元402获取GIS场景信息后,先由渲染单元403对其进行渲染,再由储存单元407将渲染信息储存在后缓冲区,接着,第一发送单元404发送显示请求至服务端,第一接收单元405接收服务端发送的显示指令,然后换为单元408将后缓冲区和前缓冲区换位,最后由显示单元406进行显示。 [0132] Since the acquisition unit 402 acquires scene information GIS, first rendering unit 403 to render them, from the storage unit 407 will then render the information is stored in the buffer, then the first transmission unit 404 transmits a display request to the server , a first display instruction receiving unit 405 receives the service sent by the server, and then changed to the buffer unit 408 and the front buffer after transposition, and finally displayed by the display unit 406. 而现有技术中节点机接收GIS场景信息后,需要等待接收服务端的同步指令后才进行渲染,再进行显示。 After the node receives the prior art GIS scene information, the synchronization instruction to wait before receiving the server for rendering, then the display. 由于不同节点机性能差异导致各个节点机对每一帧渲染的时间不一样,从而产生了显示不同步。 Since the machine performance differences lead to different nodes each node is not the same for each machine frame rendering time, resulting in the display is not synchronized. 本发明的方法是在所有节点机都渲染完成之后,等待显示指令,同步显示,从而解决了性能差异导致各个节点机对每一帧渲染的时间不一样的问题,从而达到同步显示的目的。 The method of the present invention is that all the nodes after completion of rendering machines, Wait command, synchronous display, so as to solve the performance difference results in each node for each machine frame rendering time is not the same problem, so as to achieve synchronized display. 另外,将后缓冲区和前缓冲区换位,原后缓冲区变成当前前缓冲区,而原前缓冲区变为当前后缓冲区,当前前缓冲区进行显示,而当前后缓冲区用来接收下一帧的渲染信息。 Further, the back buffer and front buffer transposition, before the original buffer becomes the current buffer, and the original after the buffer becomes the current buffer before the current front buffer for display, and the current back buffer is used rendering information receiving the next frame. 这个改变能够节省缓冲区到显示区的传递时间,使信息的处理速度更快。 This change can be saved to the transmission buffer area of ​​the display time, information processing speed faster.

[0133]请参阅图5,本发明实施例还提供的一种服务端,具体包括: [0133] Referring to FIG. 5, a service provided by the end of the further embodiment of the present invention embodiment, comprises:

[0134]第二发送单元501,用于向各节点机发送GIS场景信息; [0134] The second sending unit 501, for each node transmits scene information GIS;

[0Ί 35]第二接收单元502,用于接收节点机发送的显示请求; [0Ί 35] The second receiving unit 502, a display request sent by the receiving node;

[0136]第三发送单元503,用于当接收到所有节点机的显示请求后,发送显示指令到各节点机。 [0136] The third transmission unit 503, after receiving a request to display all the node controller, each node transmits a display instruction to the machine.

[0137]本发明实施例中的一种服务端进一步包括: [0137] A server in the embodiment of the present invention further comprises:

[0138]第三接收单元5014,用于接收各节点机组播的各节点机的位置信息; [0138] The third receiving unit 5014, configured to receive position information of each node controller in each node broadcast unit;

[0139]第二建立单元5015,用于根据位置信息建立连接列表; [0139] The second establishing unit 5015 for establishing a connection according to the location information of the list;

[0140]第四发送单元5016,用于根据连接列表发送服务端位置信息到各节点机; [0140] The fourth sending unit 5016, configured to send location information to the server unit according to connected nodes list;

[OH1]第四接收单元5017,用于接收节点机发送socket会话列表建立请求; [OH1 in] a fourth receiving unit 5017, configured to receive a list of node sends a session establishment request socket;

[0142] 第三建立单元5018,用于建立socket会话列表。 [0142] Third establishing unit 5018, for establishing a session list socket.

[0143]下面以一个实际应用中的例子对本发明实施例中一种服务端内部单元通信方式进行描述: [0143] In the following a practical example of embodiment of a service end of the internal communication unit of the present embodiment will be described embodiments of the invention:

[0144]首先,由第三接收单元5014接收各节点机组播的各节点机的位置信息;需要说明的是,由于节点机不知道服务端的位置,无法通过单播的方式发送自己的位置信息,因此通过组播的方式来实现,该位置信息可以包括IP端口、物理位置等位置信息。 [0144] First, receiving position information of each node controller nodes multicast unit 5014 by the third receiving unit; it should be noted that, since the node is unaware of the location server can not send its own position information through a unicast manner Therefore by multicast manner, the location information may comprise location information of IP port, the physical location. 然后由第二建立单元5015根据位置信息建立连接列表;接着,第四发送单元5016根据连接列表发送服务端位置信息到各节点机;然后第四接收单元5017接收节点机发送socket会话列表建立请求;最后,第三建立单元5018,用于建立socket会话列表。 Then establishing unit established by the second connection list 5015 based on position information; Next, a fourth transmission unit 5016 transmits a service list according to the connection information to the end position of each node computer; and a fourth receiving unit 5017 receives a list of node sends a session establishment request socket; Finally, the third 5018 establishing unit for establishing socket session list.

[0145]其次,由第二发送单元501向各节点机发送GIS场景信息;接着,第二接收单元502接收节点机发送的显示请求;当接收到所有节点机的显示请求后,第三发送单元503发送显示指令到各节点机。 [0145] Next, by the second transmission GIS scene information transmitting unit 501 to each node computer; Next, a display request receiving unit 502 receives the second node sends a; after receiving a request to display all the node controller, a third transmission unit 503 transmits a display instruction to the respective node unit.

[0146]现有技术中节点机接收GIS场景信息后,需要等待接收服务端的同步指令后才进行渲染,再进行显示。 After the [0146] prior art GIS node receives scenario information, synchronization command needs to wait before receiving the server for rendering, then the display. 由于不同节点机性能差异导致各个节点机对每一帧渲染的时间不一样,从而产生了显示不同步。 Since the machine performance differences lead to different nodes each node is not the same for each machine frame rendering time, resulting in the display is not synchronized. 本发明的方法是在所有节点机都渲染完成之后,发送显示指令,同步显示,从而解决了性能差异导致各个节点机对每一帧渲染的时间不一样的问题,从而达到同步显示的目的。 The method of the present invention is that all the nodes after completion of rendering machines, transmitting a display command, display synchronization, so as to solve the performance difference results in each node for each machine frame rendering time is not the same problem, so as to achieve synchronized display.

[0147]另外,于现有技术中,服务端与节点机通过广播的方式建立通信,由于广播字节太多,容易产生网络风暴。 [0147] Further, in the prior art, the server machine and the node establish communications by broadcasting, since too many bytes broadcast, network storm prone. 而建立socket会话列表则有效避免了网络风暴的产生。 Establish socket session list is effectively avoiding the generation of network storm.

[0148]请参阅图6,本发明实施例还提供了一种的GIS场景信息处理系统,具体包括: [0148] Referring to FIG. 6, embodiments of the present invention further provides a scenario of GIS information processing system comprises:

[0149] 节点机601和服务端602; [0149] node 601 and server 602;

[0150] 节点机601包括: [0150] nodes 601 comprising:

[0151 ] 建立单元6011,用于与服务端建立通信; [0151] creating unit 6011, for establishing communication with the server;

[0152]获取单元6012,用于获取服务端发送的GIS场景信息; [0152] obtaining unit 6012, configured to obtain GIS scene information sent by the server;

[0153]渲染单元6013,用于对GIS场景信息进行渲染,得到渲染信息; [0153] 6013 rendering unit, scene information for rendering GIS obtain rendering information;

[0154] 第一发送单元6014,用于发送显示请求至服务端; [0154] The first sending unit 6014, configured to send a request to the display server;

[0155]第一接收单元6015,用于接收服务端发送的显示指令; [0155] The first receiving unit 6015 for receiving a display instruction transmitted from the server;

[0156] 显示单元6016,用于对渲染信息进行显示。 [0156] a display unit 6016, rendering information for display.

[0157] 服务端602包括: [0157] server 602 comprises:

[0158]第二发送单元6021,用于向各节点机发送GIS场景信息; [0158] The second sending unit 6021, for each node transmits scene information GIS;

[0159]第二接收单元6022,用于接收节点机发送的显示请求; [0159] The second receiving unit 6022, a display request for the receiving node sends;

[0160]第三发送单元6023,用于当接收到所有节点机的显示请求后,发送显示指令到各节点机。 [0160] The third transmission unit 6023, after receiving a request to display all the node controller, each node transmits a display instruction to the machine.

[0161]下面以一个实际应用中的例子对本发明实施例中的一种的GIS场景信息处理系统中各单元之间的通信进行描述。 [0161] In the following an example of a practical application of one embodiment of a communication between the scene information processing system GIS units will be described embodiments of the present invention.

[0162]首先,建立单元6011与服务端602建立通信,其目的是为了节点机和服务端能够进行通信。 [0162] First, the establishing unit 6011 to establish a communication with the server 602, which are designed to machine and server nodes can communicate.

[0163]接着,获取单元6012获取发送单元6021发送的GIS场景信息,该信息可以是三维的也可以是二维的。 [0163] Next, the acquisition unit 6012 acquires GIS information transmitting unit 6021 transmits the scene, which may be three dimensional information can also be two-dimensional.

[0164]然后,渲染单元6013对GIS场景信息进行渲染,得到渲染信息。 [0164] Then, the rendering unit 6013 pairs GIS scene rendering information, rendering information obtained.

[0165]接着,第一发送单元6014发送显示请求至服务端,第二接收单元6022接收该显示请求,当所有节点机均发送了显示请求后,第三发送单元6023发送显示指令给各个节点机。 [0165] Next, a first transmission unit 6014 transmits a display request to the server, a second reception unit 6022 receives the display request after all the nodes have transmitted the display request unit, the third transmission unit 6023 transmits a display instruction to each node computer . 第一接收单元6015接收第三发送单元6023发送的显示指令,最后显示单元6016对渲染信息进行显示。 A first receiving unit 6015 receives a third transmission unit 6023 transmits a display command, and finally the display unit 6016 pairs of rendering information to be displayed.

[0166]现有技术中节点机接收GIS场景信息后,需要等待接收服务端的同步指令后才进行渲染,再进行显示。 After the [0166] prior art GIS node receives scenario information, synchronization command needs to wait before receiving the server for rendering, then the display. 由于不同节点机性能差异导致各个节点机对每一帧渲染的时间不一样,从而产生了显示不同步。 Since the machine performance differences lead to different nodes each node is not the same for each machine frame rendering time, resulting in the display is not synchronized. 本发明的方法是在所有节点机都渲染完成之后,等待显示指令,同步显示,从而解决了性能差异导致各个节点机对每一帧渲染的时间不一样的问题,从而达到同步显示的目的。 The method of the present invention is that all the nodes after completion of rendering machines, Wait command, synchronous display, so as to solve the performance difference results in each node for each machine frame rendering time is not the same problem, so as to achieve synchronized display.

[0167]所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统,装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。 [0167] Those skilled in the art may clearly understand that, for convenience and brevity of description, specific working process of the foregoing system, apparatus, and unit may refer to the corresponding process in the foregoing method embodiments, not described herein again .

[0168]在本申请所提供的几个实施例中,应该理解到,所揭露的系统,装置和方法,可以通过其它的方式实现。 [0168] In several embodiments provided herein present embodiment, it should be understood that the system, apparatus and method disclosed may be implemented in other manners. 例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。 For example, the described apparatus embodiments are merely illustrative of, for example, the unit division is merely logical function division, there may be other division in actual implementation, for example, a plurality of units or components may be combined or It can be integrated into another system, or some features may be ignored or not performed. 另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。 Another point, displayed or coupling or direct coupling or communication between interconnected in question may be through some interface, device, or indirect coupling or communication connection unit, may be electrical, mechanical, or other forms.

[0169]所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。 [0169] The unit described as separate components may be or may not be physically separate, parts displayed as units may be or may not be physical units, i.e. may be located in one place, or may be distributed to a plurality of networks unit. 可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。 You can select some or all of the units according to actual needs to achieve the object of the solutions of the embodiments.

[0170]另外,在本发明各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。 [0170] Additionally, functional units may be integrated in various embodiments of the present invention in a processing unit, separate units may be physically present, may be two or more units are integrated into one unit. 上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。 The integrated unit may be implemented in the form of hardware, software functional units may also be implemented.

[0171]所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。 [0171] If the integrated unit is realized as an independent product sold or used in the form of a software functional unit may be stored in a computer-readable storage medium. 基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。 Based on such understanding, the technical solutions of the present invention essentially, or the part or all of the technical solutions contributing to the prior art may be embodied in part or in the form of a software product, which computer software product is stored in a storage medium , including several instructions for instructing a computer device (may be a personal computer, a server, or network device) to perform all or part of the steps of the methods of the various embodiments of the present invention. 而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read-OnlyMemory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。 The storage medium includes: U disk, mobile hard disk, a read-only memory (ROM, Read-OnlyMemory), a random access various memory (RAM, Random Access Memory), a magnetic disk, or an optical medium can store program codes.

[0172]以上所述,以上实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。 [0172] The above embodiments above are intended to illustrate the present invention, rather than limiting;. Although the present invention has been described in detail embodiments, those of ordinary skill in the art should be understood: that they may still It may be made to the technical solutions described in the foregoing modified embodiment, or some technical features equivalents; as such modifications or replacements do not cause the essence of corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present invention .

Claims (5)

1.一种GIS场景信息处理方法,其特征在于,包括: 与服务端建立通信; 获取所述服务端发送的GIS场景信息; 对所述GIS场景信息进行渲染,得到渲染信息; 发送显示请求至所述服务端; 接收所述服务端发送的显示指令; 对所述渲染信息进行显示; 所述与服务端建立通信步骤包括: 组播节点机位置信息,使服务端接收后建立连接列表; 接收所述服务端根据所述连接列表发送的服务端位置信息; 根据所述服务端位置信息,向所述服务端发送socket会话列表建立请求,使服务端建立socket会话列表。 A GIS scene information processing method characterized by comprising: establishing communication with the server; GIS obtaining context information sent from the server; the GIS information for rendering the scene, to obtain rendering information; send a request to display the server; receiving a display instruction transmitted from the server; the rendering information for display; the step of establishing a communication with the server comprising: a position information of the multicast node that establish a connection list after the service receiving terminal; receiving the server according to a service list transmission end position information of the connection; end position information according to the service, transmitting the service list to the socket end of the session establishment request, for establishing the socket end so that the service session list.
2.根据权利要求1所述的GIS场景信息处理方法,其特征在于, 所述对所述GIS场景信息进行渲染,得到渲染信息步骤之后,所述发送显示请求至所述服务端步骤之前还包括,将所述渲染信息储存至后缓冲区。 The scene before GIS information processing method according to claim 1, wherein said scene information is rendered to the GIS, the rendering information obtained after the step of sending the display request to the server further comprises the step of , the rendering information is saved to the buffer.
3.根据权利要求2所述的GIS场景信息处理方法,其特征在于, 所述对所述渲染信息进行显示步骤之前还包括将所述后缓冲区与前缓冲区换位。 3. GIS scene information processing method according to claim 2, characterized in that, prior to said displaying further comprising the step of rendering information to the back buffer and the front buffer transposition.
4.根据权利要求1所述的GIS场景信息处理方法,其特征在于, 所述获取所述服务端发送的GIS场景信息步骤之后,所述对所述渲染信息进行显示步骤之前还包括: 接收所述服务端发送的根据所述GIS场景信息计算得到的显示信息; 根据所述显示信息调整显示参量。 The scene before GIS information processing method according to claim 1, wherein said step of obtaining the GIS scene information sent by the server after the step of displaying the rendered information further comprises: receiving transmitting said server based on the scene display GIS information calculated; adjusting the display information according to display parameters.
5.一种服务端,其特征在于,包括: 第二发送单元,用于向各节点机发送GIS场景信息; 第二接收单元,用于接收节点机发送的显示请求; 第三发送单元,用于当接收到所有节点机的显示请求后,发送显示指令到各节点机; 所述服务端还包括: 第三接收单元,用于接收各节点机组播的各节点机的位置信息; 第二建立单元,用于根据所述位置信息建立连接列表; 第四发送单元,用于根据所述连接列表发送服务端位置信息到各节点机; 第四接收单元,用于接收节点机发送socket会话列表建立请求; 第三建立单元,用于建立socket会话列表。 A service terminal, characterized by comprising: a second sending unit, for each node sends GIS context information; a second receiving unit, the receiving node sends a display request for; a third sending unit, with Upon reception of the display on the requesting machine all nodes, each node transmits a display instruction to the machine; said server further comprising: a third receiving unit for receiving position information of each node controller nodes broadcast unit; a second establishing means for establishing a connection list according to the location information; and a fourth transmitting means for transmitting the service list according to position information of the end node is connected to each of the machine; a fourth receiving unit, socket session list for the receiving node sends establishment request; third establishing unit for establishing a session socket list.
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